target city on this night, san leandro. >> initial contact is the most dangerous. >> reporter: special agents from the california department of justice are on the hunt. >> it appears nobody is home at this time. report but they keep moving. door to door looking for a number of people, people who they say lost their rights to own guns but who still have them. >> you can't see behind the security door. >> reporter: he talked about it. in this instance, they knocked on the door and the woman mentally disabled, she not suppose to have a 9-millimeter, she had it. they also found this shotguns and shells that go with it. >> she's prohibited until 2017. report -- >> reporter: john alerts us to new numbers. as of last month, the california doj says more than 2700 of these individuals live in the bay area. east bay resident who lives a few doors down where where agent confiscated a shotgun and ammunition. he likes the action the state is taking. >> somebody have a large extensive criminal record shouldn't have a gun. >> reporter: a state doj say it is cross references people with weapons and fi